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Higgs pair production at the LHC with NLO and parton-shower effects

Frederix, R. LU orcid ; Frixione, S. ; Hirschi, V. ; Maltoni, F. ; Mattelaer, O. ; Torrielli, P. ; Vryonidou, E. and Zaro, M. (2014) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 732. p.142-149
Abstract

We present predictions for the SM-Higgs-pair production channels of relevance at the LHC: gluon-gluon fusion, VBF, and top-pair, W, Z and single-top associated production. All these results are at the NLO accuracy in QCD, and matched to parton showers by means of the MC@NLO method; hence, they are fully differential. With the exception of the gluon-gluon fusion process, for which a special treatment is needed in order to improve upon the infinite-top-mass limit, our predictions are obtained in a fully automatic way within the publicly available MadGraph5_aMC@NLO framework. We show that for all channels in general, and for gluon-gluon fusion and top-pair associated production in particular, NLO corrections reduce the theoretical... (More)

We present predictions for the SM-Higgs-pair production channels of relevance at the LHC: gluon-gluon fusion, VBF, and top-pair, W, Z and single-top associated production. All these results are at the NLO accuracy in QCD, and matched to parton showers by means of the MC@NLO method; hence, they are fully differential. With the exception of the gluon-gluon fusion process, for which a special treatment is needed in order to improve upon the infinite-top-mass limit, our predictions are obtained in a fully automatic way within the publicly available MadGraph5_aMC@NLO framework. We show that for all channels in general, and for gluon-gluon fusion and top-pair associated production in particular, NLO corrections reduce the theoretical uncertainties, and are needed in order to arrive at reliable predictions for total rates as well as for distributions.

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author
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publishing date
type
Contribution to journal
publication status
published
subject
in
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
732
pages
8 pages
publisher
Elsevier
external identifiers
  • scopus:84897458834
ISSN
0370-2693
DOI
10.1016/j.physletb.2014.03.026
language
English
LU publication?
no
id
10e6d214-33e1-4425-9f92-7983140317d7
date added to LUP
2019-05-28 15:34:04
date last changed
2022-04-02 18:03:55
@article{10e6d214-33e1-4425-9f92-7983140317d7,
  abstract     = {{<p>We present predictions for the SM-Higgs-pair production channels of relevance at the LHC: gluon-gluon fusion, VBF, and top-pair, W, Z and single-top associated production. All these results are at the NLO accuracy in QCD, and matched to parton showers by means of the MC@NLO method; hence, they are fully differential. With the exception of the gluon-gluon fusion process, for which a special treatment is needed in order to improve upon the infinite-top-mass limit, our predictions are obtained in a fully automatic way within the publicly available MadGraph5_aMC@NLO framework. We show that for all channels in general, and for gluon-gluon fusion and top-pair associated production in particular, NLO corrections reduce the theoretical uncertainties, and are needed in order to arrive at reliable predictions for total rates as well as for distributions.</p>}},
  author       = {{Frederix, R. and Frixione, S. and Hirschi, V. and Maltoni, F. and Mattelaer, O. and Torrielli, P. and Vryonidou, E. and Zaro, M.}},
  issn         = {{0370-2693}},
  language     = {{eng}},
  month        = {{05}},
  pages        = {{142--149}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Higgs pair production at the LHC with NLO and parton-shower effects}},
  url          = {{http://dx.doi.org/10.1016/j.physletb.2014.03.026}},
  doi          = {{10.1016/j.physletb.2014.03.026}},
  volume       = {{732}},
  year         = {{2014}},
}